import java.util.Arrays;

public class Main { 
    public static void main(String[] args) { 
	int[] arr1= {1,2,3,4};
//	int[] arr2= Arrays.copyOf(arr1,arr1.length);
	int[] arr2= Arrays.copyOf(arr1,20);

	for(int i=0;i<arr2.length;i++)
		System.out.print(arr2[i]+" ");
    } 
} 